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run code in 300+ PHP versions simultaneously
<?php $array = array( array( 'name' => 'Foo', 'children' => array( 'B', 'A', ), ), array( 'name' => 'Bar', 'children' => array( 'Z', 'X', 'Y', ), ), ); usort($array, function (&$x, &$y) { sort($x['children']); sort($y['children']); $x[] = 'Test'; return strcasecmp($x['name'], $y['name']); });
Output for 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
Warning: {closure}(): Argument #1 ($x) must be passed by reference, value given in /in/Qarse on line 21 Warning: {closure}(): Argument #2 ($y) must be passed by reference, value given in /in/Qarse on line 21
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: {closure}(): Argument #1 ($x) must be passed by reference, value given in /in/Qarse on line 28 Warning: {closure}(): Argument #2 ($y) must be passed by reference, value given in /in/Qarse on line 28
Output for 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33
preferences:
170.78 ms | 403 KiB | 183 Q